新型压电变摩擦阻尼器的研发与性能试验
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摘要
本文采用商用标准件叠层压电驱动器和圆形摩擦盘,研发了能提供水平任一方向可调摩擦阻尼力的新型压电变摩擦阻尼器,能与圆形隔震垫协同工作复合而成智能隔震系统。文中首先提出了新型压电阻尼器的基本结构,制作了试验室比例的模型;其次针对压电驱动器变形在微米数量级的特点和约束钢架的刚度特性,提出了基于有限元分析的形状系数和可调正压力计算方法。并用约束钢架变形试验验证了有限元分析的正确性;最后通过阻尼器性能试验提出了连续型的阻尼力计算模型,一种适合于实际工程应用的摩擦阻尼力模型。提出的新型压电摩擦阻尼器构造简单,阻尼力调节方便,响应速度快,特别是便于进一步增大阻尼力调节倍数,能够较大地推动压电阻尼器实用化进程。
In this paper,commercially available multilayer piezoelectric stack actuators are considered for driving variable friction damper.An independently developed smart damper is presented,which can slide in any horizontal directions,so it works together with circular seismic isolator and forms smart isolation system.Firstly,its working principle and designing are introduced,and a scale piezoelectric damper is manufactured and assembled.Secondly,the finite element analysis program ANSYS is put to use and then the deformation test is done to prove the correctness of the calculation.Finally,the performance experiment is carried out under varying voltage to identify its motion-independent characteristics on two-way slide.For the isolation structure,the continuous friction damping force model is proposed,and the performance test results are consistent with the theoretical model.The proposed piezoelectric damper has such advantages as simple configuration,convenient damping adjustability and rapid response,and in particular it is suitable for further transformation to increase the damping force.Therefore,it can promote the practical process of this damper.
In this paper,commercially available multilayer piezoelectric stack actuators are considered for driving variable friction damper.An independently developed smart damper is presented,which can slide in any horizontal directions,so it works together with circular seismic isolator and forms smart isolation system.Firstly,its working principle and designing are introduced,and a scale piezoelectric damper is manufactured and assembled.Secondly,the finite element analysis program ANSYS is put to use and then the deformation test is done to prove the correctness of the calculation.Finally,the performance experiment is carried out under varying voltage to identify its motion-independent characteristics on two-way slide.For the isolation structure,the continuous friction damping force model is proposed,and the performance test results are consistent with the theoretical model.The proposed piezoelectric damper has such advantages as simple configuration,convenient damping adjustability and rapid response,and in particular it is suitable for further transformation to increase the damping force.Therefore,it can promote the practical process of this damper.
引文
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[9]瞿伟廉,陈朝晖,徐幼麟.压电材料智能摩擦阻尼器对高耸钢塔结构风振反应的半主动控制[J].地震工程与工程振动,2000,20(1):74-80.QU Weilian,CHEN Zhaohui,XU Youlin.Wind-induced vibration control of high-rise steel-truss tower using piezoelectric smart friction dampers[J].Journal of Earthquake Engineering and Engineering Vibration,2000,20(1):74-80.(in Chinese)
[10]王社良,马乾瑛,朱军强,等.压电主动杆件在结构抗震控制中的优化设计及实验研究[J].地震工程与工程振动,2010,30(2):113-118.WANG Sheliang,MA Qianying,ZHU Junqiang.et al.Optimization design of the piezoelectric driving bar and test for anti-seismic control[J].Jour-nal of Earthquake Engineering and Engineering Vibration,2010,30(2):113-118.(in Chinese)
[11]朱军强,马少波,王社良,等.单层网壳结构振动压电控制分析与实验研究[J].地震工程与工程振动,2011,31(4):114-119.ZHU Junqiang,MA Shaobo,WANG Sheliang.et al.Experimental study on seismic response of Kewitte latticed shell using piezoelectric actuator[J].Journal of Earthquake Engineering and Engineering Vibration,2011,31(4):114-119.(in Chinese)
[12]Constantinou M C,Mokha A.Teflon bearings in base isolationⅡModeling[J].Journal of Structural Engineering,ASCE,116(2)445-457.
[13]王建强.基础隔震结构多维及平扭偶联地震反应分析[D].西安:西安建筑科技大学,2003.WANG Jianqiang.Analysis on multi-dimensional and lateral-torsional coupled seismic response of base-isolated structures[D].Xi’an:Xi’an Uin-versity of Architecture and Technology,2003.(in Chinese)
[2]Sherrit S,Xiaoqi Bao,Jones C M.Piezoelectric multilayer actuator life test[J].IEEE Transactions on Ultrasonics,Ferroelectrics,and FrequencyControl,2011,58(4):820-828.
[3]Stewart Sherrit,Christopher Jones.Characterization of piezoelectric stacks for space applications[C]//Proceedings of the 11th Aerospace DivisionInternational Conference on Engineering,Science,Construction,and Operations in Challenging Environments,2008,323:1473-1480.
[4]Fujita T.Active microvibration control of precision manufacturing factories with smart structure using piezoelectric actuators[C]//Proceedings ofSPIE,Newport Beach,CA,2001,4330:449-459.
[5]王社良,樊禹江,刘苗苗.新型压电摩擦阻尼器动态力学性能的理论分析[J].水利与建筑工程学报,2011,9(3):34-53.WANG Sheliang,FANG Yujiang,LIU Miaomiao.Theoretical analysis on dynamic mechanical properties of a new type of piezoelectric frictiondampers[J].Journal of Water Resources and Architectural Engineering,2011,9(3)34-53.(in Chinese)
[6]欧进萍,杨飏.压电-T型变摩擦阻尼器及其性能试验与分析[J].地震工程与工程振动,2003,23(4):171-177.OU Jinping,YANG Yang.Piezoelectric-T shape variable friction damper and its performance tests and analysis[J].Journal of Earthquake Engi-neering and Engineering Vibration,2003,23(4):171-177.(in Chinese)
[7]李宏男,李军.半主动摩擦阻尼器对偏心结构振动控制的仿真研究[J].哈尔滨工业大学学报,2005,37(10):1360-1362.LI Hongnan,LI Jun.Simulation of vibration control for irregular building using semi-active friction dampers[J].Journal of Harbin Institute ofTechnology,2005,37(10):1360-1362.(in Chinese)
[8]Chen G D,Chen C C.Semi-active control of 20-story benchmark building with piezoelectric friction dampers[J].Journal of Engineering Mechan-ics,130(4):393-400.
[9]瞿伟廉,陈朝晖,徐幼麟.压电材料智能摩擦阻尼器对高耸钢塔结构风振反应的半主动控制[J].地震工程与工程振动,2000,20(1):74-80.QU Weilian,CHEN Zhaohui,XU Youlin.Wind-induced vibration control of high-rise steel-truss tower using piezoelectric smart friction dampers[J].Journal of Earthquake Engineering and Engineering Vibration,2000,20(1):74-80.(in Chinese)
[10]王社良,马乾瑛,朱军强,等.压电主动杆件在结构抗震控制中的优化设计及实验研究[J].地震工程与工程振动,2010,30(2):113-118.WANG Sheliang,MA Qianying,ZHU Junqiang.et al.Optimization design of the piezoelectric driving bar and test for anti-seismic control[J].Jour-nal of Earthquake Engineering and Engineering Vibration,2010,30(2):113-118.(in Chinese)
[11]朱军强,马少波,王社良,等.单层网壳结构振动压电控制分析与实验研究[J].地震工程与工程振动,2011,31(4):114-119.ZHU Junqiang,MA Shaobo,WANG Sheliang.et al.Experimental study on seismic response of Kewitte latticed shell using piezoelectric actuator[J].Journal of Earthquake Engineering and Engineering Vibration,2011,31(4):114-119.(in Chinese)
[12]Constantinou M C,Mokha A.Teflon bearings in base isolationⅡModeling[J].Journal of Structural Engineering,ASCE,116(2)445-457.
[13]王建强.基础隔震结构多维及平扭偶联地震反应分析[D].西安:西安建筑科技大学,2003.WANG Jianqiang.Analysis on multi-dimensional and lateral-torsional coupled seismic response of base-isolated structures[D].Xi’an:Xi’an Uin-versity of Architecture and Technology,2003.(in Chinese)
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